Saturday, July 10, 2010


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XQuery is to XML what SQL is to database tables.

XQuery is case-sensitive and XQuery elements, attributes, and variables must be valid XML names.


FLWOR is an acronym for "For, Let, Where, Order by, Return".
  • The for clause selects all book elements under the bookstore element  into a variable called $x.
  • The where clause selects only book elements with a price element with a value greater than 30.
  • The order by clause defines the sort-order. Will be sort by the title element.
  • The return clause specifies what should be returned. Here it returns the title elements.

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